The frustrating truth about monsoon season in Asia is that it doesn't hit everywhere at once. The Southwest Monsoon, which rolls in from around late May, hammers Thailand's west coast, parts of Malaysia, and much of Indochina, but it simultaneously dries out places like Bali and eastern Indonesia. Meanwhile, Japan is starting to warm up, South Korea is beautiful in June, and Da Nang is sitting in its sweet spot window before the autumn rains arrive. The golfer who knows this calendar doesn't stay home from May to October. They just travel smarter.
The Southwest Monsoon typically sets in from May to early June, with winds turning to blow from the southeast or southwest, and the traditional dry season for the southern ASEAN region sets in around this time. That sounds counterintuitive, and it is, because "dry season" in Singapore and Peninsula Malaysia means you're getting afternoon storms rather than all-day washouts, while the actual holiday destinations flip. Here's how it breaks down, month by month.
May
This is the transition month. Peninsular Malaysia and JB are still playable but increasingly unreliable on weekends, the kind of conditions where you book and hope.
Bintan and Batam are actually reasonable through May, sitting in a relatively dry patch as the monsoon builds to the northwest.
The real standout for May is Da Nang and central Vietnam. February to May offers warm, dry conditions for both golf and exploring nearby attractions, making it one of the best underrated windows to get on Montgomerie Links, Laguna Lang Co, or Hoiana Shores before the crowds and before the autumn typhoon season. If you haven't booked a Da Nang trip for May, open that calendar now.
June and July
These are when the picture clarifies sharply.
Phuket and the west coast of Thailand are best from November to March, with the rainy months from June to October bringing monsoon season. Cross Phuket off the list. Bangkok is playable, the rain comes in afternoon bursts rather than all-day, but it's hot, humid, and not inspiring.
The winners in June and July are further north. Hokkaido in northern Japan enjoys nice, cool weather all the way from April through to the end of October and is perfect for golfing, and with over 150 courses across the island, it's genuinely one of the great undiscovered golf destinations for Singapore expats.
Bali is also excellent, the dry season from May to September ensures clear skies and cooler temperatures, the best playing conditions for golf. Bali National, New Kuta, and Nirwana Bali Resort are all in fine condition through this window, and the island is less crowded than peak European summer.
August
The is peak wet season for most of mainland Southeast Asia, and also when South Korea's monsoon, called jangma, arrives in earnest.
July to August is the wettest time of year in South Korea, with monsoon rains bringing about half of the country's annual rainfall. So Seoul and Jeju lose their shine in August specifically.
The safe plays remain Bali and Hokkaido, both of which are in their prime. For those chasing something more adventurous, the best time for golfing in Batam is from June to September when the weather is moderate and rainfall is lower, with around 10.7 hours of sunshine per day. Not the most glamorous destination, but a solid weekday escape.
September and October
These are arguably the best months for Japan outside Hokkaido, autumn foliage, cooler temperatures, and courses in spectacular condition. For many golfers, autumn is the highlight of the year in Japan, with foliage transforming into a spectacular palette of crimson, orange, and gold, turning wooded courses into living art.
September is also when Bali's dry season is winding down, so get that booking in early.
South Korea bounces back hard in October, May and October are the golden season for golf in Jeju Island, with the October climate pleasant, not too hot or cold, and little rainfall. Thailand's west coast starts to come back to life in late October. And Vietnam's central coast, having been largely washable through September, begins its difficult period.
October brings higher risk of typhoons and violent storms to Central Vietnam, so hold off on the Da Nang trip until November.
One universal truth worth remembering, during monsoon season, rain typically falls in short afternoon bursts rather than all-day downpours, and for golfers who know how to travel on a budget, this off-peak window offers the best value with fewer crowds and lower prices. An early tee time in "rainy season" Bangkok or KL usually means a perfectly dry round. The issue is the afternoon, book the 7am slot and you'll often be finished and in the clubhouse before the first cloud builds.
QUICK FACTS: WET SEASON WINNERS BY MONTH
May: Da Nang ✅ | Bintan ✅ | Bali ✅ | Phuket ⚠️
June–July: Bali ✅ | Hokkaido ✅ | Da Nang ⚠️ | Phuket ❌ | Bangkok (mornings only) ⚠️
August: Bali ✅ | Hokkaido ✅ | Batam ✅ | South Korea ❌ | Phuket ❌
September: Japan (Honshu/Kyushu) ✅ | Bali (wrapping up) ✅ | Da Nang ❌
October: Japan ✅ | Jeju ✅ | Phuket (late Oct) ✅ | Da Nang ❌
Avoid May–Oct: Phuket, Krabi, KL, Penang, Da Nang (Sep–Oct), Hanoi
TAKEAWAY
The Expat Golfer who treats May to October as a dead zone is leaving six months of perfectly good golf on the table. Bali from June to August, Hokkaido from June to September, Da Nang in May, and Japan or Jeju in October, that's a full wet season calendar with a trip for every month. Pick your window, check whether you're on the winning side of the monsoon map, and book the early tee time.
